Automatic time-switch.



M, H. VRAM. AUTQ'MANC UME SWITCH.

APPucATmN man iuLY 8,1914.

Patented Aug. 31, 1915 2 SHEETS-SHEET 1 noel/LTO;

ifa

with some 0f the paris omii'efi;

circui'sg and Fig, 7

eis Pi. im

T0 IIZZ 'wiwi-n may comers/i Be ii known iie i, ii. Amai@ e, ciizei 0it the Unieci Siaizes, Presiding New Y'k ciiy, amenity and Siem el?.

York, have invenedi Celex-iin new imei alsefui improvements in Aummatie ,L eene/memes? of which Ehe 'oiiewing i5 e speeiiicaiieii.

This inventif@ reianes 5o e nvei mei-ae matic ime swiiscii Whisk is; more jgs-Yiieiiiiriy designed te be wed in eonjuiiciien Wiii an eiieieny irecoier foi* machines? eine., auch as for insance shown and described iii elw pending paen appiieaaimi iiie me im uziy 23, i914, under erii. umher Si il have feumi it is be of the nim-esi i. min Mmc@ wih ifespec; i@ :1 reiiabie opeiaioii of susi; L receivfie, fai-iai iie' eleeiic eenee whichis repeei-eciiy by i'ie machine im be conoiied, Je mziin'izsinei for a @erwin ienglifi 'of air/fie; in 'iL/iii@ way @Hiya preper energizing of the eieci'omegnets iiiafiiim pai- @if che eieiemy remede?, is obtained. iii'y improved switch Contains novei and 'effective means for .iiiaiiiziii ng si signal at a point (iisani imm the machine, for indiening that the iater is in epereigien. in the accompanying drawing: Figuie 1 is a face View pariy'bi'oiien ei? my. improved time swiieii with the casing open; Fig. 2 a crees seciion on line 2 53., l?

iongitudinai section hi'ough the air cyiimriei and coperaing parte; fi e, deibaii of the signaiing lampdiperziiing' Ii ansgigj. im enlarged cross section, @n line 5-5, Figw Fig. G @Wiring diagram of the recording e, Wiring diagram of the i signaling eix'cui,

Thiougii suitabie dues-bight sn'zuing; boxes 10, il of a casing l2 pasees a recipmcnfing iofi 13 the eye Moi" which is; adapted i@ be coupied insuitabie manner io a movaiie of ih@ machine to be controlled. Re? i stmddled by a feed lever 15 which is oeseiy mounted on a boss 12a of casing i2 Said i) ss supporting :i sind, 16. Intermediate tie bushing i() and lever l5 is arranged a. prssure spring; 1'?, whiieib'etween a reiativeiy fixed collar i8 oi'od- 13 idiever i5 ihelife is interposed a spring 19,boti1 of the springs 17 and 19 encircling i'oci 13. The teneionxo the springs 17 and l9ish0uid' be such that "when the swifch is at'gres, ieve 15 abuts against@ ixed pm 20. f

To leverl is pivoted at 21 a feed pawi 22 fifi;

Si Le ils 25,

25 piveifefi at 26 io casing i9; :mii iiiiueiieea QZ. @ppesie mi spriceei herefi'bm'is aimnggeci Sini/28, he fimwiiig shewiigfhe 24 mafie iniegi'ei with commen iwi) 9. fififei Q42 is pi'qvifieri with a piiiraiiy of eecieis 50 :.'i'xanged a cifcie, iviiie 28 'hed 'with e iiife member'e simiiariy omiions 31: o each pair 0i" confined iov a. transverse pin all. viPisimi i0 is snugly iieci into staiieneiyfyiinde 4&2, "che inward iiievemeni. of 'the @vision being iimiied. by a. coiiiii i3 af'iapte t@ abili, aggaiis. fmii imo iie hitter is fursiivei pia); of which is resiiiceci by al. ap smeweii on the cyiinder. The opposed e ffice@ of piston Li() and piungez 44.- are cenCiive-fi ai. 46, LY fespec'ftiveij,T to olmir poeiets. Flange? 4: is provided with im ennuie?? reeess 48 :for the accommodation of a, springfi that iends to orce the plunger inwar.' The ia''e'l' has fui-ther an axially exeziziing siem 5G that projects euwaii through :i for pending perforation of cap wiiiie'n pin 50a iimis the inwr piay of pillage?? 4:4. Ttem 50 engages a, first eonzcz spying arranged apposite a second. Contact spring; 52 and spacez therefromv ehe springe 5l, 52 being vshown im be seemed to a coil man block 53 of insulating material Spring 5l is connected o e source of eiectrieity 5% by a Wire 55, whiie spfing 52 is conneced @ning 23 @mi engaging eiiew sidi: the lever ie oiiows: Haring each'reipmcaion @if void` 13s level' i5 moves once back and forth,

thereby advancing ratchet wheel 24 for one perforations 31 equals that of the yteeth of ratchet wheel 24 and as furthermore each of the pairs of alined sockets and perforations'is in Fig. lshown to be provided with a pin 32, it is obvious that durinfy each reciprocation of lever 15lever 36 "will also perform a complete reciprocation. During theadvance of the pin 32, lever 36 will spring '38 will retract said leverand' thus return piston 40 to its original position.

Owing to the 'volume of air entrapped between piston 40 and plunger 44, the sudden :return of sfaid piston will throwthe plunger outward against the action of spring 49, the outward movement 'of said plungerl being so calculated Ithat the stem 50 not only brings spring 51 into contact With 'spring 52 but bends both of said springs slightly outward to produce4 a frictional or liding movement therebetween. As a certain time is required before spring 49 can return plunger 44 to its original lposition owing .to the .time required for. the entra-pped air to escape, it is obvious that a contact is maintained between the contact springs 51, 52 for almost the same length oftime. In this way the circuit 54, 57, A, 56, 52,551, 55, 54 is maintained closed for a period sufiiciently long to warrant runder all circumstances the proper energizing of electromagnet A necessary for a reliable operation oi the recording device. 'It will further be seen that it is impossible? with this device that the circuit remains closed for any protracted length of time after having performed its Work, irrespective of the position in which the machine controlled by the eiiciency 'recorder happens to come to a stop. In case the movable member of said machine to which rod 13 is connected, has a high speed, or if a less frequent operation of the recording device is desired, alternating pins 32 orJnore of-such pins may be removed from wheel 24, 28, the slowest operation being of course obtained if but one Vpin 32 isl This removal and' carried by said wheel. reinsertion of pins may be readily effected by withdrawing cotter 34 and plate 33 whereby the pe-rforations 31 and pins 32 are rendered readily accessible.

In order to indicate at a distant point as to whether the machine to which the above described time switch is connected, is running or not, the following construction has been devised: Lever 15 is-provided with an As the number of sockets 30 andv 'has a relatively fixed sleeve 73 an extension 59 that carries a pair of sectorshaped racks G0, 61. Of these, rack 60 engagesa pinoin 62 while rack 31 engages a similar pinion 63. Pinions G2, (33 are loosely mounted on a spindle 64 and are provided with spring-influenced pawls G5,

66 that engage ratchet wheels 67, 68 respectively, the latter being fast on spindle G4. This spindle carries further a fixed beveled gear wheel 69 meshing into-a similar wheel 70 fast on a rotary spindle 71 that carries a centrifugal governor 72.. This (governor a movable sleeve 74 which carries a disk 75. The latter is adapted to engage an insulator 76 carried by a spring contact 77 which latter is in turn adapted to en age another spring contact 78, both of sai contacts being secured to a common insulator 79. Contact 77 is, by wire 80, connected to a source of electricity 81. From the latter leads a wire 82 to a signal such as a lamp 83 which is in turn connected to contact 78 by wire 84.

- lt will be seen that as long as rod 13 is reciprocated such reciprocation will cause governor 72 andI disk 75 to be rotated, the balls of said governor and the disk acting as a fly wheelto maintain rotation irrespective of the momentary sto s of racks 60, 61 at their points of reversa rotation, diskg will be lowered toefl'ect a contact between the parts 77, 78 and to close the signal circuit. In case the ma- Owing to this chine controlled stops, disk 75 will beraised" to cause a disengagement between contacts- 77', 78 and thereby open the signal circuit,

comprising a reciprocal rod, a feed lever ac.

tu'ated thereby, a pawl carried by said lever,

` a ratchet wheel engaged by the pawl, a plurality of removable pins carried by the ratchet wheel, a spring-influenced lever operated by said pins, and a contact making and breaking device controlled by said last named lever. 1

3.1A device of the character described, comprising a reciprocal rod, a feed lever actuated thereby, aY pawl carried 'by saidy lever, 'aratchet Wheel engaged by Athe pawl and providedwith a plurality of sockets, pins removably fitted into said sockets, a spring-influenced ,lever operated by said length of/ time..

ing means; being adapted to retard'sad re turn movement of the second member Where- .beredepte'd to be pneumatealb7 advanced 'by the rst member, a pair of yielding. con;

taetsadapted to be closed uponan advance l;0 of the second member, and a spring for returning said second member, vthe p'neumamc advancmg means belng adapted to retard ,said return movement of the second member whereby the Contact is maintained closed for a length of time.

l MOS H. AVRAM.

Wftnessesz' d ARTHUR E.VZUMPE, n MADELINE HIRSCH. 

